Tail fin for a surfboard



FIG. 1 is a perspective view showing the top, front and left side of atail fin for a surfboard which forms my new design;

FIG. 2 is an enlarged perspective view showing the top, front and leftside of the tail fin for a surfboard shown in FIG. 1.

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawing are for illustrative purposes only andform no part of the claimed design.

The ornamental design for a tail fin for a surfboard, as shown anddescribed.